<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        img {
            filter: blur(0px) grayscale(0%) brightness(100%) contrast(100%) hue-rotate(90deg);
            animation-name: a;
            animation-duration: 10s;
            animation-iteration-count: infinite;
            display: block;
            width: 100px;
            height: 100px;
            /* -webkit-box-reflect: below 16px -webkit-linear-gradient(transparent,transparent 50%,rgba(255,255,255,0.6)); */
            -webkit-box-reflect: below 1px -webkit-linear-gradient(transparent, transparent 20%, rgba(0, 0, 0, .5));
        }

        @keyframes a {

            0%,
            100% {
                filter: blur(0px) grayscale(0%) brightness(100%) contrast(100%) hue-rotate(0deg);
            }

            50% {
                filter: blur(0px) grayscale(0%) brightness(100%) contrast(100%) hue-rotate(360deg);
            }
        }
    </style>
</head>

<body>
    <img src="./src/assets/logo.png" alt="">
    <script>
        // es6
        /*
        let const
        for in 
        for of
        **  指数
        **= 指数赋值
        
        
        数组
            ...扩展符
            Array.isArray()

        */
        console.log(2 ** 10);
    </script>

</body>

</html>